--- PctestIpv4Udp.cc.t	2008-03-13 12:32:02.312337354 -0700
+++ PctestIpv4Udp.cc	2008-03-13 12:32:19.682770489 -0700
@@ -49,7 +49,7 @@
 	return socketOut;
     }
     
-#ifdef linux
+#if defined(linux) && defined(SO_BSDCOMPAT)
     // Linux needs SO_BSDCOMPAT enabled on our UDP socket, to avoid
     // getting ICMP errors when we send packets out.
     int bsdcompatOption;